[sigrok-cli.git] / parsers.c

/*
 * This file is part of the sigrok-cli project.
 *
 * Copyright (C) 2011 Bert Vermeulen <bert@biot.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <glib.h>
#include "sigrok-cli.h"

struct sr_channel *find_channel(GSList *channellist, const char *channelname)
{
	struct sr_channel *ch;
	GSList *l;

	ch = NULL;
	for (l = channellist; l; l = l->next) {
		ch = l->data;
		if (!strcmp(ch->name, channelname))
			break;
	}
	ch = l ? l->data : NULL;

	return ch;
}

GSList *parse_channelstring(struct sr_dev_inst *sdi, const char *channelstring)
{
	struct sr_channel *ch;
	GSList *channellist, *channels;
	int ret, n, b, e, i;
	char **tokens, **range, **names, *eptr, str[8];

	channels = sr_dev_inst_channels_get(sdi);

	if (!channelstring || !channelstring[0])
		/* Use all channels by default. */
		return g_slist_copy(channels);

	ret = SR_OK;
	range = NULL;
	names = NULL;
	channellist = NULL;
	tokens = g_strsplit(channelstring, ",", 0);
	for (i = 0; tokens[i]; i++) {
		if (tokens[i][0] == '\0') {
			g_critical("Invalid empty channel.");
			ret = SR_ERR;
			break;
		}
		if (strchr(tokens[i], '-')) {
			/*
			 * A range of channels in the form a-b. This will only work
			 * if the channels are named as numbers -- so every channel
			 * in the range must exist as a channel name string in the
			 * device.
			 */
			range = g_strsplit(tokens[i], "-", 2);
			if (!range[0] || !range[1] || range[2]) {
				/* Need exactly two arguments. */
				g_critical("Invalid channel syntax '%s'.", tokens[i]);
				ret = SR_ERR;
				goto range_fail;
			}

			b = strtol(range[0], &eptr, 10);
			if (eptr == range[0] || *eptr != '\0') {
				g_critical("Invalid channel '%s'.", range[0]);
				ret = SR_ERR;
				goto range_fail;
			}
			e = strtol(range[1], NULL, 10);
			if (eptr == range[1] || *eptr != '\0') {
				g_critical("Invalid channel '%s'.", range[1]);
				ret = SR_ERR;
				goto range_fail;
			}
			if (b < 0 || b >= e) {
				g_critical("Invalid channel range '%s'.", tokens[i]);
				ret = SR_ERR;
				goto range_fail;
			}

			while (b <= e) {
				n = snprintf(str, 8, "%d", b);
				if (n < 0 || n > 8) {
					g_critical("Invalid channel '%d'.", b);
					ret = SR_ERR;
					break;
				}
				ch = find_channel(channels, str);
				if (!ch) {
					g_critical("unknown channel '%d'.", b);
					ret = SR_ERR;
					break;
				}
				channellist = g_slist_append(channellist, ch);
				b++;
			}
range_fail:
			if (range)
				g_strfreev(range);

			if (ret != SR_OK)
				break;
		} else {
			names = g_strsplit(tokens[i], "=", 2);
			if (!names[0] || (names[1] && names[2])) {
				/* Need one or two arguments. */
				g_critical("Invalid channel '%s'.", tokens[i]);
				g_strfreev(names);
				ret = SR_ERR;
				break;
			}

			ch = find_channel(channels, names[0]);
			if (!ch) {
				g_critical("unknown channel '%s'.", names[0]);
				g_strfreev(names);
				ret = SR_ERR;
				break;
			}
			if (names[1]) {
				/* Rename channel. */
				g_free(ch->name);
				ch->name = g_strdup(names[1]);
			}
			channellist = g_slist_append(channellist, ch);

			g_strfreev(names);
		}
	}

	if (ret != SR_OK) {
		g_slist_free(channellist);
		channellist = NULL;
	}

	g_strfreev(tokens);

	return channellist;
}

int parse_trigger_match(char c)
{
	int match;

	if (c == '0')
		match = SR_TRIGGER_ZERO;
	else if (c == '1')
		match = SR_TRIGGER_ONE;
	else if (c == 'r')
		match = SR_TRIGGER_RISING;
	else if (c == 'f')
		match = SR_TRIGGER_FALLING;
	else if (c == 'e')
		match = SR_TRIGGER_EDGE;
	else if (c == 'o')
		match = SR_TRIGGER_OVER;
	else if (c == 'u')
		match = SR_TRIGGER_UNDER;
	else
		match = 0;

	return match;
}

int parse_triggerstring(const struct sr_dev_inst *sdi, const char *s,
		struct sr_trigger **trigger)
{
	struct sr_channel *ch;
	struct sr_trigger_stage *stage;
	GVariant *gvar;
	GSList *l, *channels;
	gsize num_matches;
	gboolean found_match, error;
	const int32_t *matches;
	int32_t match;
	unsigned int j;
	int t, i;
	char **tokens, *sep;
	struct sr_dev_driver *driver;

	driver = sr_dev_inst_driver_get(sdi);
	channels = sr_dev_inst_channels_get(sdi);

	if (maybe_config_list(driver, sdi, NULL, SR_CONF_TRIGGER_MATCH,
			&gvar) != SR_OK) {
		g_critical("Device doesn't support any triggers.");
		return FALSE;
	}
	matches = g_variant_get_fixed_array(gvar, &num_matches, sizeof(int32_t));

	*trigger = sr_trigger_new(NULL);
	error = FALSE;
	tokens = g_strsplit(s, ",", -1);
	for (i = 0; tokens[i]; i++) {
		if (!(sep = strchr(tokens[i], '='))) {
			g_critical("Invalid trigger '%s'.", tokens[i]);
			error = TRUE;
			break;
		}
		*sep++ = 0;
		ch = NULL;
		for (l = channels; l; l = l->next) {
			ch = l->data;
			if (ch->enabled && !strcmp(ch->name, tokens[i]))
				break;
			ch = NULL;
		}
		if (!ch) {
			g_critical("Invalid channel '%s'.", tokens[i]);
			error = TRUE;
			break;
		}
		for (t = 0; sep[t]; t++) {
			if (!(match = parse_trigger_match(sep[t]))) {
				g_critical("Invalid trigger match '%c'.", sep[t]);
				error = TRUE;
				break;
			}
			found_match = FALSE;
			for (j = 0; j < num_matches; j++) {
				if (matches[j] == match) {
					found_match = TRUE;
					break;
				}
			}
			if (!found_match) {
				g_critical("Trigger match '%c' not supported by device.", sep[t]);
				error = TRUE;
				break;
			}
			/* Make sure this ends up in the right stage, creating
			 * them as needed. */
			while (!(stage = g_slist_nth_data((*trigger)->stages, t)))
				sr_trigger_stage_add(*trigger);
			if (sr_trigger_match_add(stage, ch, match, 0) != SR_OK) {
				error = TRUE;
				break;
			}
		}
	}
	g_strfreev(tokens);
	g_variant_unref(gvar);

	if (error)
		sr_trigger_free(*trigger);

	return !error;
}

GHashTable *parse_generic_arg(const char *arg, gboolean sep_first)
{
	GHashTable *hash;
	int i;
	char **elements, *e;

	if (!arg || !arg[0])
		return NULL;

	i = 0;
	hash = g_hash_table_new_full(g_str_hash, g_str_equal,
			g_free, g_free);
	elements = g_strsplit(arg, ":", 0);
	if (sep_first)
		g_hash_table_insert(hash, g_strdup("sigrok_key"),
				g_strdup(elements[i++]));
	for (; elements[i]; i++) {
		e = strchr(elements[i], '=');
		if (!e)
			g_hash_table_insert(hash, g_strdup(elements[i]), NULL);
		else {
			*e++ = '\0';
			g_hash_table_insert(hash, g_strdup(elements[i]), g_strdup(e));
		}
	}
	g_strfreev(elements);

	return hash;
}

GHashTable *generic_arg_to_opt(const struct sr_option **opts, GHashTable *genargs)
{
	GHashTable *hash;
	GVariant *gvar;
	int i;
	char *s;
	gboolean b;

	hash = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
			(GDestroyNotify)g_variant_unref);
	for (i = 0; opts[i]; i++) {
		if (!(s = g_hash_table_lookup(genargs, opts[i]->id)))
			continue;
		if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_UINT32)) {
			gvar = g_variant_new_uint32(strtoul(s, NULL, 10));
			g_hash_table_insert(hash, g_strdup(opts[i]->id),
					g_variant_ref_sink(gvar));
		} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_INT32)) {
			gvar = g_variant_new_int32(strtoul(s, NULL, 10));
			g_hash_table_insert(hash, g_strdup(opts[i]->id),
					g_variant_ref_sink(gvar));
		} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_UINT64)) {
			gvar = g_variant_new_uint64(strtoul(s, NULL, 10));
			g_hash_table_insert(hash, g_strdup(opts[i]->id),
					g_variant_ref_sink(gvar));
		} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_DOUBLE)) {
			gvar = g_variant_new_double(strtod(s, NULL));
			g_hash_table_insert(hash, g_strdup(opts[i]->id),
					g_variant_ref_sink(gvar));
		} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_STRING)) {
			gvar = g_variant_new_string(s);
			g_hash_table_insert(hash, g_strdup(opts[i]->id),
					g_variant_ref_sink(gvar));
		} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_BOOLEAN)) {
			b = TRUE;
			if (0 == strcmp(s, "false") || 0 == strcmp(s, "no")) {
				b = FALSE;
			} else if (!(0 == strcmp(s, "true") || 0 == strcmp(s, "yes"))) {
				g_critical("Unable to convert '%s' to boolean!", s);
			}

			gvar = g_variant_new_boolean(b);
			g_hash_table_insert(hash, g_strdup(opts[i]->id),
					g_variant_ref_sink(gvar));
		} else {
			g_critical("Don't know GVariant type for option '%s'!", opts[i]->id);
		 }
	}

	return hash;
}

static char *strcanon(const char *str)
{
	int p0, p1;
	char *s;

	/* Returns newly allocated string. */
	s = g_ascii_strdown(str, -1);
	for (p0 = p1 = 0; str[p0]; p0++) {
		if ((s[p0] >= 'a' && s[p0] <= 'z')
				|| (s[p0] >= '0' && s[p0] <= '9'))
			s[p1++] = s[p0];
	}
	s[p1] = '\0';

	return s;
}

int canon_cmp(const char *str1, const char *str2)
{
	int ret;
	char *s1, *s2;

	s1 = strcanon(str1);
	s2 = strcanon(str2);
	ret = g_ascii_strcasecmp(s1, s2);
	g_free(s2);
	g_free(s1);

	return ret;
}

/* Convert driver options hash to GSList of struct sr_config. */
static GSList *hash_to_hwopt(GHashTable *hash)
{
	struct sr_config *src;
	GList *gl, *keys;
	GSList *opts;
	char *key;

	keys = g_hash_table_get_keys(hash);
	opts = NULL;
	for (gl = keys; gl; gl = gl->next) {
		key = gl->data;
		src = g_malloc(sizeof(struct sr_config));
		if (opt_to_gvar(key, g_hash_table_lookup(hash, key), src) != 0)
			return NULL;
		opts = g_slist_append(opts, src);
	}
	g_list_free(keys);

	return opts;
}

int parse_driver(char *arg, struct sr_dev_driver **driver, GSList **drvopts)
{
	struct sr_dev_driver **drivers;
	GHashTable *drvargs;
	int i;
	char *drvname;

	if (!arg)
		return FALSE;

	drvargs = parse_generic_arg(arg, TRUE);

	drvname = g_strdup(g_hash_table_lookup(drvargs, "sigrok_key"));
	g_hash_table_remove(drvargs, "sigrok_key");
	*driver = NULL;
	drivers = sr_driver_list(sr_ctx);
	for (i = 0; drivers[i]; i++) {
		if (strcmp(drivers[i]->name, drvname))
			continue;
		*driver = drivers[i];
	}
	if (!*driver) {
		g_critical("Driver %s not found.", drvname);
		g_hash_table_destroy(drvargs);
		g_free(drvname);
		return FALSE;
	}
	g_free(drvname);
	if (sr_driver_init(sr_ctx, *driver) != SR_OK) {
		g_critical("Failed to initialize driver.");
		g_hash_table_destroy(drvargs);
		return FALSE;
	}

	if (drvopts) {
		*drvopts = NULL;
		if (g_hash_table_size(drvargs) > 0) {
			if (!(*drvopts = hash_to_hwopt(drvargs))) {
				/* Unknown options, already logged. */
				g_hash_table_destroy(drvargs);
				return FALSE;
			}
		}
	}

	g_hash_table_destroy(drvargs);

	return TRUE;
}
Commit	Line	Data
43e5747a	1	/*
630293b4	2	* This file is part of the sigrok-cli project.
43e5747a UH	3	*
	4	* Copyright (C) 2011 Bert Vermeulen <bert@biot.com>
	5	*
	6	* This program is free software: you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation, either version 3 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	18	*/
	19
	20	#include <stdio.h>
	21	#include <stdlib.h>
	22	#include <stdint.h>
	23	#include <string.h>
	24	#include <glib.h>
662a1e27	25	#include "sigrok-cli.h"
43e5747a	26
029d73fe	27	struct sr_channel find_channel(GSList channellist, const char *channelname)
43e5747a	28	{
029d73fe	29	struct sr_channel *ch;
497f5362	30	GSList *l;
43e5747a	31
029d73fe UH	32	ch = NULL;
	33	for (l = channellist; l; l = l->next) {
	34	ch = l->data;
	35	if (!strcmp(ch->name, channelname))
497f5362	36	break;
c2c4a0de	37	}
029d73fe	38	ch = l ? l->data : NULL;
497f5362	39
029d73fe	40	return ch;
497f5362 BV	41	}
497f5362 BV	42
029d73fe	43	GSList parse_channelstring(struct sr_dev_inst sdi, const char *channelstring)
497f5362	44	{
029d73fe	45	struct sr_channel *ch;
c6fa2b2e	46	GSList channellist, channels;
497f5362 BV	47	int ret, n, b, e, i;
497f5362 BV	48	char tokens, range, *names, eptr, str[8];
43e5747a	49
c6fa2b2e UH	50	channels = sr_dev_inst_channels_get(sdi);
c6fa2b2e UH	51
029d73fe UH	52	if (!channelstring \|\| !channelstring[0])
029d73fe UH	53	/* Use all channels by default. */
c6fa2b2e	54	return g_slist_copy(channels);
497f5362 BV	55
	56	ret = SR_OK;
	57	range = NULL;
66149c20	58	names = NULL;
029d73fe UH	59	channellist = NULL;
029d73fe UH	60	tokens = g_strsplit(channelstring, ",", 0);
43e5747a	61	for (i = 0; tokens[i]; i++) {
497f5362	62	if (tokens[i][0] == '\0') {
029d73fe	63	g_critical("Invalid empty channel.");
497f5362 BV	64	ret = SR_ERR;
	65	break;
	66	}
43e5747a	67	if (strchr(tokens[i], '-')) {
f0f54487 UH	68	/*
f0f54487 UH	69	* A range of channels in the form a-b. This will only work
029d73fe UH	70	* if the channels are named as numbers -- so every channel
029d73fe UH	71	* in the range must exist as a channel name string in the
f0f54487 UH	72	* device.
f0f54487 UH	73	*/
43e5747a UH	74	range = g_strsplit(tokens[i], "-", 2);
	75	if (!range[0] \|\| !range[1] \|\| range[2]) {
	76	/* Need exactly two arguments. */
029d73fe	77	g_critical("Invalid channel syntax '%s'.", tokens[i]);
497f5362	78	ret = SR_ERR;
8ec20386	79	goto range_fail;
43e5747a UH	80	}
43e5747a UH	81
497f5362 BV	82	b = strtol(range[0], &eptr, 10);
497f5362 BV	83	if (eptr == range[0] \|\| *eptr != '\0') {
029d73fe	84	g_critical("Invalid channel '%s'.", range[0]);
497f5362	85	ret = SR_ERR;
8ec20386	86	goto range_fail;
497f5362	87	}
43e5747a	88	e = strtol(range[1], NULL, 10);
497f5362	89	if (eptr == range[1] \|\| *eptr != '\0') {
029d73fe	90	g_critical("Invalid channel '%s'.", range[1]);
497f5362	91	ret = SR_ERR;
8ec20386	92	goto range_fail;
497f5362 BV	93	}
497f5362 BV	94	if (b < 0 \|\| b >= e) {
029d73fe	95	g_critical("Invalid channel range '%s'.", tokens[i]);
497f5362	96	ret = SR_ERR;
8ec20386	97	goto range_fail;
43e5747a UH	98	}
	99
	100	while (b <= e) {
497f5362 BV	101	n = snprintf(str, 8, "%d", b);
497f5362 BV	102	if (n < 0 \|\| n > 8) {
029d73fe	103	g_critical("Invalid channel '%d'.", b);
497f5362 BV	104	ret = SR_ERR;
	105	break;
	106	}
c6fa2b2e	107	ch = find_channel(channels, str);
029d73fe UH	108	if (!ch) {
029d73fe UH	109	g_critical("unknown channel '%d'.", b);
497f5362 BV	110	ret = SR_ERR;
	111	break;
	112	}
029d73fe	113	channellist = g_slist_append(channellist, ch);
43e5747a UH	114	b++;
43e5747a UH	115	}
8ec20386 DJ	116	range_fail:
	117	if (range)
	118	g_strfreev(range);
	119
497f5362 BV	120	if (ret != SR_OK)
497f5362 BV	121	break;
43e5747a	122	} else {
497f5362 BV	123	names = g_strsplit(tokens[i], "=", 2);
	124	if (!names[0] \|\| (names[1] && names[2])) {
	125	/* Need one or two arguments. */
029d73fe	126	g_critical("Invalid channel '%s'.", tokens[i]);
6df458b7	127	g_strfreev(names);
497f5362	128	ret = SR_ERR;
43e5747a UH	129	break;
	130	}
	131
c6fa2b2e	132	ch = find_channel(channels, names[0]);
029d73fe UH	133	if (!ch) {
029d73fe UH	134	g_critical("unknown channel '%s'.", names[0]);
6df458b7	135	g_strfreev(names);
497f5362 BV	136	ret = SR_ERR;
	137	break;
	138	}
	139	if (names[1]) {
029d73fe UH	140	/* Rename channel. */
	141	g_free(ch->name);
	142	ch->name = g_strdup(names[1]);
43e5747a	143	}
029d73fe	144	channellist = g_slist_append(channellist, ch);
8ec20386	145
6df458b7	146	g_strfreev(names);
43e5747a UH	147	}
43e5747a UH	148	}
66149c20	149
497f5362	150	if (ret != SR_OK) {
029d73fe UH	151	g_slist_free(channellist);
029d73fe UH	152	channellist = NULL;
43e5747a UH	153	}
	154
	155	g_strfreev(tokens);
43e5747a	156
029d73fe	157	return channellist;
43e5747a UH	158	}
43e5747a UH	159
6b27bde4 BV	160	int parse_trigger_match(char c)
	161	{
	162	int match;
	163
	164	if (c == '0')
	165	match = SR_TRIGGER_ZERO;
	166	else if (c == '1')
	167	match = SR_TRIGGER_ONE;
	168	else if (c == 'r')
	169	match = SR_TRIGGER_RISING;
	170	else if (c == 'f')
	171	match = SR_TRIGGER_FALLING;
	172	else if (c == 'e')
	173	match = SR_TRIGGER_EDGE;
	174	else if (c == 'o')
	175	match = SR_TRIGGER_OVER;
	176	else if (c == 'u')
	177	match = SR_TRIGGER_UNDER;
	178	else
	179	match = 0;
	180
	181	return match;
	182	}
	183
4bf77ec6 BV	184	int parse_triggerstring(const struct sr_dev_inst sdi, const char s,
4bf77ec6 BV	185	struct sr_trigger **trigger)
6b27bde4 BV	186	{
6b27bde4 BV	187	struct sr_channel *ch;
6b27bde4 BV	188	struct sr_trigger_stage *stage;
6b27bde4 BV	189	GVariant *gvar;
c6fa2b2e	190	GSList l, channels;
6b27bde4 BV	191	gsize num_matches;
	192	gboolean found_match, error;
	193	const int32_t *matches;
	194	int32_t match;
	195	unsigned int j;
	196	int t, i;
	197	char *tokens, sep;
c6fa2b2e UH	198	struct sr_dev_driver *driver;
	199
	200	driver = sr_dev_inst_driver_get(sdi);
	201	channels = sr_dev_inst_channels_get(sdi);
6b27bde4	202
24bd9719	203	if (maybe_config_list(driver, sdi, NULL, SR_CONF_TRIGGER_MATCH,
6b27bde4 BV	204	&gvar) != SR_OK) {
	205	g_critical("Device doesn't support any triggers.");
	206	return FALSE;
	207	}
	208	matches = g_variant_get_fixed_array(gvar, &num_matches, sizeof(int32_t));
	209
4bf77ec6	210	*trigger = sr_trigger_new(NULL);
6b27bde4 BV	211	error = FALSE;
	212	tokens = g_strsplit(s, ",", -1);
	213	for (i = 0; tokens[i]; i++) {
	214	if (!(sep = strchr(tokens[i], '='))) {
	215	g_critical("Invalid trigger '%s'.", tokens[i]);
	216	error = TRUE;
	217	break;
	218	}
	219	*sep++ = 0;
	220	ch = NULL;
c6fa2b2e	221	for (l = channels; l; l = l->next) {
6b27bde4 BV	222	ch = l->data;
	223	if (ch->enabled && !strcmp(ch->name, tokens[i]))
	224	break;
	225	ch = NULL;
	226	}
	227	if (!ch) {
	228	g_critical("Invalid channel '%s'.", tokens[i]);
	229	error = TRUE;
	230	break;
	231	}
	232	for (t = 0; sep[t]; t++) {
	233	if (!(match = parse_trigger_match(sep[t]))) {
	234	g_critical("Invalid trigger match '%c'.", sep[t]);
	235	error = TRUE;
	236	break;
	237	}
	238	found_match = FALSE;
	239	for (j = 0; j < num_matches; j++) {
	240	if (matches[j] == match) {
	241	found_match = TRUE;
	242	break;
	243	}
	244	}
	245	if (!found_match) {
	246	g_critical("Trigger match '%c' not supported by device.", sep[t]);
	247	error = TRUE;
	248	break;
	249	}
	250	/* Make sure this ends up in the right stage, creating
	251	* them as needed. */
4bf77ec6 BV	252	while (!(stage = g_slist_nth_data((*trigger)->stages, t)))
4bf77ec6 BV	253	sr_trigger_stage_add(*trigger);
6b27bde4 BV	254	if (sr_trigger_match_add(stage, ch, match, 0) != SR_OK) {
	255	error = TRUE;
	256	break;
	257	}
	258	}
	259	}
	260	g_strfreev(tokens);
	261	g_variant_unref(gvar);
	262
	263	if (error)
4bf77ec6	264	sr_trigger_free(*trigger);
6b27bde4 BV	265
	266	return !error;
	267	}
	268
63bb454c	269	GHashTable parse_generic_arg(const char arg, gboolean sep_first)
43e5747a UH	270	{
	271	GHashTable *hash;
	272	int i;
	273	char *elements, e;
	274
	275	if (!arg \|\| !arg[0])
	276	return NULL;
	277
63bb454c BV	278	i = 0;
	279	hash = g_hash_table_new_full(g_str_hash, g_str_equal,
	280	g_free, g_free);
43e5747a	281	elements = g_strsplit(arg, ":", 0);
63bb454c BV	282	if (sep_first)
	283	g_hash_table_insert(hash, g_strdup("sigrok_key"),
	284	g_strdup(elements[i++]));
	285	for (; elements[i]; i++) {
43e5747a UH	286	e = strchr(elements[i], '=');
	287	if (!e)
	288	g_hash_table_insert(hash, g_strdup(elements[i]), NULL);
	289	else {
	290	*e++ = '\0';
	291	g_hash_table_insert(hash, g_strdup(elements[i]), g_strdup(e));
	292	}
	293	}
	294	g_strfreev(elements);
	295
	296	return hash;
	297	}
	298
87e24fed BV	299	GHashTable generic_arg_to_opt(const struct sr_option opts, GHashTable genargs)
	300	{
	301	GHashTable *hash;
	302	GVariant *gvar;
	303	int i;
	304	char *s;
41ef1ae4	305	gboolean b;
87e24fed BV	306
	307	hash = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
	308	(GDestroyNotify)g_variant_unref);
	309	for (i = 0; opts[i]; i++) {
	310	if (!(s = g_hash_table_lookup(genargs, opts[i]->id)))
	311	continue;
	312	if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_UINT32)) {
	313	gvar = g_variant_new_uint32(strtoul(s, NULL, 10));
	314	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	315	g_variant_ref_sink(gvar));
	316	} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_INT32)) {
	317	gvar = g_variant_new_int32(strtoul(s, NULL, 10));
	318	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	319	g_variant_ref_sink(gvar));
902e368e BV	320	} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_UINT64)) {
	321	gvar = g_variant_new_uint64(strtoul(s, NULL, 10));
	322	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	323	g_variant_ref_sink(gvar));
87e24fed BV	324	} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_DOUBLE)) {
	325	gvar = g_variant_new_double(strtod(s, NULL));
	326	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	327	g_variant_ref_sink(gvar));
	328	} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_STRING)) {
	329	gvar = g_variant_new_string(s);
	330	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	331	g_variant_ref_sink(gvar));
41ef1ae4 JS	332	} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_BOOLEAN)) {
	333	b = TRUE;
	334	if (0 == strcmp(s, "false") \|\| 0 == strcmp(s, "no")) {
	335	b = FALSE;
	336	} else if (!(0 == strcmp(s, "true") \|\| 0 == strcmp(s, "yes"))) {
	337	g_critical("Unable to convert '%s' to boolean!", s);
	338	}
	339
	340	gvar = g_variant_new_boolean(b);
	341	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	342	g_variant_ref_sink(gvar));
87e24fed BV	343	} else {
	344	g_critical("Don't know GVariant type for option '%s'!", opts[i]->id);
	345	}
	346	}
	347
	348	return hash;
	349	}
	350
2be182e6	351	static char strcanon(const char str)
432de709 BV	352	{
	353	int p0, p1;
	354	char *s;
	355
	356	/* Returns newly allocated string. */
	357	s = g_ascii_strdown(str, -1);
	358	for (p0 = p1 = 0; str[p0]; p0++) {
	359	if ((s[p0] >= 'a' && s[p0] <= 'z')
	360	\|\| (s[p0] >= '0' && s[p0] <= '9'))
	361	s[p1++] = s[p0];
	362	}
	363	s[p1] = '\0';
	364
	365	return s;
	366	}
	367
d2ee5eea	368	int canon_cmp(const char str1, const char str2)
432de709 BV	369	{
	370	int ret;
	371	char s1, s2;
	372
	373	s1 = strcanon(str1);
	374	s2 = strcanon(str2);
	375	ret = g_ascii_strcasecmp(s1, s2);
	376	g_free(s2);
	377	g_free(s1);
	378
	379	return ret;
	380	}
d75c8529 BV	381
	382	/* Convert driver options hash to GSList of struct sr_config. */
	383	static GSList hash_to_hwopt(GHashTable hash)
	384	{
	385	struct sr_config *src;
	386	GList gl, keys;
	387	GSList *opts;
	388	char *key;
	389
	390	keys = g_hash_table_get_keys(hash);
	391	opts = NULL;
	392	for (gl = keys; gl; gl = gl->next) {
	393	key = gl->data;
	394	src = g_malloc(sizeof(struct sr_config));
	395	if (opt_to_gvar(key, g_hash_table_lookup(hash, key), src) != 0)
	396	return NULL;
	397	opts = g_slist_append(opts, src);
	398	}
	399	g_list_free(keys);
	400
	401	return opts;
	402	}
	403
	404	int parse_driver(char arg, struct sr_dev_driver driver, GSList *drvopts)
	405	{
	406	struct sr_dev_driver **drivers;
	407	GHashTable *drvargs;
	408	int i;
	409	char *drvname;
	410
bc5b66d7 JS	411	if (!arg)
	412	return FALSE;
	413
d75c8529 BV	414	drvargs = parse_generic_arg(arg, TRUE);
	415
	416	drvname = g_strdup(g_hash_table_lookup(drvargs, "sigrok_key"));
	417	g_hash_table_remove(drvargs, "sigrok_key");
	418	*driver = NULL;
59e421bb	419	drivers = sr_driver_list(sr_ctx);
d75c8529 BV	420	for (i = 0; drivers[i]; i++) {
	421	if (strcmp(drivers[i]->name, drvname))
	422	continue;
	423	*driver = drivers[i];
	424	}
	425	if (!*driver) {
	426	g_critical("Driver %s not found.", drvname);
	427	g_hash_table_destroy(drvargs);
	428	g_free(drvname);
	429	return FALSE;
	430	}
	431	g_free(drvname);
	432	if (sr_driver_init(sr_ctx, *driver) != SR_OK) {
	433	g_critical("Failed to initialize driver.");
	434	g_hash_table_destroy(drvargs);
	435	return FALSE;
	436	}
	437
	438	if (drvopts) {
	439	*drvopts = NULL;
	440	if (g_hash_table_size(drvargs) > 0) {
	441	if (!(*drvopts = hash_to_hwopt(drvargs))) {
	442	/* Unknown options, already logged. */
	443	g_hash_table_destroy(drvargs);
	444	return FALSE;
	445	}
	446	}
	447	}
	448
	449	g_hash_table_destroy(drvargs);
	450
	451	return TRUE;
	452	}